Ladder.



W. P. MoSTAY.

. LADDER. APPLICATION FILED 10110.7, 1911.

Patented Nov. 12, 1912.

INVENTOR wmzmzc/z/qz ATTORNEYS WILLIAM FRANCIS MGSTAY, OF MONCTON,

New BRUNSWICK, CANADA, Assienon or TWENTY-FOUR AND ONE-HALFONE-HUNDREDTHS TO CHARLES A. MURRAY, 0F

MONCTON, NEW BRUNSWICK,

CANADA, AND TWENTY-FOUR AND ONE-HALF ONE- HUNDREDTH$ ,O EDGAR S. BEADE,0F OTTAWA, ONTARIO, CANADA.

LADDER.

Specification of Letters Patent.

Patented n 0v. 12, 1912.

Application filed December 7, 1911. SeriaLNo. 664,381.

concern:

WILLIAM F. MOSTAY, Great Britain, and

To all whom it may Be it known that I, a subject of the King of aresident of Moncton, in the Province of New Brunswick, Dominion ofCanada, have invented a new and Improved Ladder of which the followingis a full, clear, and exact description.

My invention relates generally to ladders and more particularly to awire 1a der made up of a number of similar units, the construction andarrangement, however, being such that a rigid article is produced.

The principal object of my invention is to provide a new and improvedladder made up of a number of similar links rigidly connected togetherwhereby the ladder may be ,picked up from a horizontal position'into avertical one without coming into folded position.

Other objects and advantages of the invention will appear as thedescription thereof proceeds, all of which is particularly pointed out.and included in the appended claim.

Reference is'to be had to the accompanying drawings, forming a part ofthis specifi cation, in which similar characters of reference denotecorresponding parts in all the views, and in which- Figure 1 is a frontview of the ladder;

Fig. 21s a side view thereof.

The ladder is designed to be built of a number of similar sections andhence the lengthof the ladder will depend on the number of sections,used, the size of each section being dependent upon the work to whichthe ladder is put and the locality and occupation in which it is used.

Each linkk comprises the sides 1, and the horizontally extending crosspiece 2, which piece is designed to serve as a round, the sides 1 andthe piece 2 being of integral construction. Each side 1 .at its lowerend is extended rearwardly in a suitable curve 3, the curve being suchthat the material, where it joins the horizontally extending portion 2,lies closely adjacent the rearthe bottom wardly extending portion fromof the side.

The upper end of each side 1 is 7 rovided with a suitable hook 4, eachhoo.- being adapted to be passed around and brought into tightengagement with the adjacent portions of the curved portion 3 and theround at one end of the round 2, the result being that each section isrigidly and non-v foldably held in engagement with the adacent section;it is to hooks extend from the front toward the rear and that thearrangement of the curved portions 3 is such that, when the parts areassembled, contact between the parts is provided, as at 5.

Each of the curved portions 3, in addinection to .the hooks' l, alsoproperly spaces each succeeding section of the ladder from the wall orsupport with which it is used, thereby providing do n a ladder free fromcontact with the wal or support.

Each section will preferably .be made of steel wire, although it isobvious that in some cases material other desirable, the choice of suchmaterial, however, being a matter of expediency and being includedwithin the spirit and scope of the appended claim.

Having thus claim as new, and desire to secure by Letters Patent Aladder made up of a number of units of similar construction, eachunitcomprising a horizontal intermediate portion adapted to serve as around, and vertically extending end portions integral with the saidintermediate portion for engagement with a succeeding unit, whereby theunits are secured together; the material the end of the said horizontalportion and the lower end of the said vertically extending portion beingbent rearwardly and, then upwardly in. the form of a curve, whereby forrapid travel up and bemoted that thetion to serving as a suitable meansof conthan steel may be described my invention, I 2

of the unit between the ladder may be spaced from a wall or othersupport, the upper ends of the vertieally extending portions beingoverturned to tightly clamped, the upper ends of the said verticallyextending portions engaging the said upwardly bent curved portions lyingbetweenthe horizontally extending portion 10 and the said verticallyextending portion.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

\VILLIAM FRANCIS MCSTAY.

Witnesses: I

WALTER S. BOWNESS, Anonnw A. ALLEN;

I "Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of latents,

Washington, D. 0.

